Windlass.



No. 639,596. Patented Dec. 19,1899. v C. A. MORRISON.

' WINDLASS. (Application filed Jan. 8, 1898.)

(No Model.)

NiTEo STATES CHESTER A. MORRISON, OF MANITOU, COLORADO.

WINDLASS.

SPECIFICATION forming part of Letters Patent No. 639,596, dated December19, 1899. Application filed January 8,1898. Serial No. 666,060. (Nomodel.)

To all whom it may concern:

Be it known that I, CHESTER A. MORRISON, a citizen of the United States,residing at Manitou, in the county of El Paso and State of Colorado,have invented a new and useful Windlass for Mining Purposes, of whichthe following is a specification.

My invention relates to improvements in windlasses to be used in mining,in which the Windlass-drum and attachments can be speedily removed fromthe supporting-standards. The objects of my improvements are, first, toprovide ball-bearing journals for the windlass-drum and its actuatingmeans; second, to facilitate the speedy removal of the windlass-drum andits actuating means from the supporting-standards; third, to provide a journal-box for the shaft of a windlass-dru m,

which j ournal-box will also serve as a j ournalfor the drum-actuatingmachinery and as a support and journal for the pawl used in connectionwith such Windlass-drum; fourth, to afford facilities for securing aratchet to each end of the Windlass-d rum,and, fifth, to provide a shaftfor use in a Windlass, which will be secured against longitudinalmovement without the use of collars or similar means. I attain theseobjects by the mechanism illustrated in the accompanying drawings, inwhich Figure 1 is a side view of the entire Windlass. Fig. 2 is an endview. Fig. 3 is a sectional end view of the journal-box, taken throughthe .dotted line 1 2 in Fig. 1. Fig. 4 is an edge view of theratchet-wheel, showing the collar and hub attached to it. Fig. 5 is aside view of the plate for holding steel balls against the cap D. Fig. 6is a longitudinal View of the shaft to which the crank G and pinion Fare secured, showing the grooves for ball-bearings. Fig. 7 is a portionof the drum-shaft, showing the groove for the ballbearing.

Similar letters refer to similar parts throughout the several views.

The Windlass and its actuating mechanism are supported by two heavywooden standards I I, secured by any suitable means to the curbing ofthe shaft. On the top of these standards rest the peculiarly constructedmetal caps D, as fully appears from the sectional View as shown in Fig.3. These caps rest loosely onthe top of the standards, so that they canbe readily removed vertically. The upper portion of the cap D serves asa base of a journal-box for the shaft 6, while from the center there isa downward-projecting portion which serves as a bearing for the shaft L.The cap D has an arm 0' on one side, which serves as a journal for theshort shaft f on which the pawl G rotates. The journal-cap d is securedto the cap D by means of the threaded bolts 01. There is a groove in thecenter of the journal-cap cl and a corresponding groove in the cap D toreceive steel balls to form a bearing for the shaft 6, and the shaft 0has a similar groove e to receive the balls. The groove 6 in the shaftserves the important purpose of keeping the shaft from movinglongitudinally,

thus dispensing with a collar at either side of the journal-box and thefriction which would result from the collar coming in contact with thebox.

In order to provide the short shaft L with ball-bearings, provision ismade for placing steel balls at each side of the cap D where the shaftpasses through said cap, and the shaft is grooved, as sho'wnin Fig. 6atZ Z, at the point where the shaft rests upon the balls to keep it fromlongitudinal movement. The cap D is beveled around the hole throughwhich the shaft L passes at either side, and a plate 72, similarlybeveled, is secured to the cap D by means of bolts or other suitablemeans, and the two beveled edges form a raceway in which the steel ballsrun, thus form= ing a ball-bearing at each side of the cap D for theshaft L.

The plate 71., as shown in Fig. 5, has the perforations h to receive thebolts that se= cure it to the cap D and short square lugs 71 that fit insockets in the cap D to keep the plate from rotating and that assist insupporting the weight-pressure of the shaft against the balls when theWindlass is in operation. If it were not for these square lugs, thesmall bolts through the perforations it would have to support the platesand the pressure of the shaft on the balls in the sheave; but by usinglugs on the plate the weight falls on them and not on the bolts, thusmakinga strong and durable support for the plates. The plates arebeveled around the edge of the hole through which the shaft passes, asshown by h and the cap D is similarly beveled on each of its sidesaround the hole through which passes the shaft L.

The shaft L has a pinion F secured to it by a key, and its outer end ismade square to receive the crank G, which is kept on the shaft by meansof the threaded nut g, which is run up against the hub on the crank. Thepinion F may be of any desired size, preferably one-half the diameter ofthe cog-gear E, so that two revolutions of the crank will be required tomake one revolution of the drum of the windlass.

The shaft 6 has secured to its outer end the cog-gear E. This shaftafter passing through the cap D extends through an inner hub Win theratchet-wheel and into, but not through, the drum A. A pin 5 whichpasses through the hub Z1 and through the shaft 6, keeps the shaft fromturning in the hub and causes the shaft and ratchet-wheel to rotate inunison.

The ratchet-wheel B is cast with a broad heavy collar Z2 on-one side ofit and a hub in the center. The collar slips over the end of the drum,while the hub is forced into the center of the drum A. The ratchet-wheelB is cast solid, with three or more holes through it to receive longwood-screws B B which en ter the head of the drum and keep the shaft 6and the ratchet-wheel from turning in the drum. The ratchet-wheel isconstructed with the hub, collar, and screws through it and fastened tothe shaft 6 and then attached to the drum. By this means the shaft c isgiven all needed strength without passing through the drum'its entirelength.

The drum A has heavy iron hands a on each end to prevent it fromcracking or splitting.

Apawl C, rotating on the short shaft f, is so constructed that itengages the teeth on the ratchet-wheel when the operator wishes tosecure the bucket elevated by the windlass from falling accidentally.When not in use, the pawl can be thrown back out of engaging contactwith the ratchet-wheel. 7

All the parts described are made in duplicate, and in a completewindlass one set is secured to each end of the drum in the manner aboveindicated, so that the windlass can be operated from either end withlike results.

The standards I Ihave a deep square socket in their uppor portion to fitthe cap D.

In use the caps D D, having secured in them the shafts L L, to which areattached the pawls C O, are permanently fastened to the shafts c e bymeans of the box-caps (Z (Z and the screws (1 cl, so that the drum A,

ratchet-wheels B B, cog-gears E E, pinions F F, cranks G G, and pawls CC will be attached together, whereby all these parts can be removed fromthe supporting-standards in connection with the drum when a blast isfired in the shaft below the windlass.

In operation the caps D D, to which are connected the drum and itsactuating means and the two reversely-set ratchets, with their pawls,are slipped down over the supportingstandards I I until they restsecurely on the top thereof. A rope, with a bucket attached to each end,is wound around the drum a num ber of times, so that one bucket will beelevated while the other descends. The operator takes hold of the crankat the end of the drum where the bucket will ascend, throws the pawlinto engaging contact with the ratchet-wheel, and by turning the crankrotates the pinion F, which engages the cog gear E, causing it, theshaft 8', and the drum and ratchets to revolve. The pawl secures thebucket from accidental descent and holds its actuating machinery areremoved together to a place of safety. After the blast the windlass isreturned, the caps slipped down over the standards, and the windlass isready for immediate use. Thereis no dang'er of losing the steel ballswhich form the bearings of the different shafts in the operation ofremoving and returning the drum,while the long flanges on the caps D Dfurnish a steady and safe means of keeping the windlass firm when inoperation. The pinions F F being directly beneath the cog-gears .E E andin the center of the supporting-standards there is no side draft on thecaps.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

The combination in a windlass of the removable cap D and the journal-capcl secured thereon, the drum A, the shaft 6 journaled in said cap D andpassing into the drum A, the ratchet-wheel 13 secured to the shaft e andthe drum A, the pawl O pivoted on the cap D and adapted to engage theratchet-wheel, the pinion E on the outer end of the shaft c, and meansfor operating said pinion, substantially as described.

. CHESTER A. MORRISON.

IV itn esses:

JNo. L. SEMMES, JAMES A. ORR.

